trying to buy

im trying the buy lifetime csgo kit with my visa card but it doesnt let me

it says The card you entered cannot be used for this payment. Please enter a different credit or debit card number.
i tried with 2 different cards and it doesnt work please help

Make sure you card accepts International transactions.
That allows you convert GBP to your actual currency.
Make sure you its enable for internet purchases.

Best thing to do is call your bank and ask whats the issue.